The Invisible web : uncovering information sources search engines can't see
著者
書誌事項
The Invisible web : uncovering information sources search engines can't see
（CyberAge books）
Information Today, c2001
- : pbk
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
Enormous expanses of the Internet are unreachable with standard web search engines. This book provides the key to finding these hidden resources by identifying how to uncover and use invisible web resources. Mapping the invisible Web, when and how to use it, assessing the validity of the information, and the future of Web searching are topics covered in detail. Only 16 percent of Net-based information can be located using a general search engine. The other 84 percent is what is referred to as the invisible Web--made up of information stored in databases. Unlike pages on the visible Web, information in databases is generally inaccessible to the software spiders and crawlers that compile search engine indexes. As Web technology improves, more and more information is being stored in databases that feed into dynamically generated Web pages. The tips provided in this resource will ensure that those databases are exposed and Net-based research will be conducted in the most thorough and effective manner.
目次
The internet & the visible web Information seeking on the visible web Specialized search tools Using the invisible web Case studies The future The best of the invisible web Art Library catalogs Investing Education Entertainment Government data Health information U.S. & world history Searching for people Reference Science Social sciences
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